A rotating endoscope

Abstract

The present application relates to a rotary endoscope, comprising: a tube for insertion into the human body, serving as an observation channel and a flushing and aspiration channel; a body connected to the tube for observing the image transmitted by the tube; a connecting seat provided on the body, provided with a liquid inlet and a liquid outlet, the liquid inlet being used to provide flushing liquid for flushing the tube, and the liquid outlet being used to extract liquid through the tube; a mounting seat rotatably mounted on the connecting seat, provided with a liquid inlet valve and a liquid outlet valve, the liquid inlet valve being connected to the liquid inlet, and the liquid outlet being connected to the liquid outlet. The present application has the advantages that since the liquid inlet valve and the liquid outlet valve for connecting the water pipe are mounted on the mounting seat, and the mounting seat and the connecting seat are rotatably connected, the mounting seat can remain stationary when the tube is rotated, thereby preventing the water pipe connected to the mounting seat from interfering with the rotation of the tube, thereby facilitating the operation of the tube during surgery.

Description

Technical Field

[0001] The present application relates to the technical field of endoscopes, and in particular to a rotary endoscope. Background Art

[0002] An endoscope is a medical device used to observe the inside of a subject by being inserted into the subject. During the examination, the interference of body fluids in the subject may cause contamination of the endoscope lens, thereby interfering with the endoscope's observation. Therefore, a water channel is usually set in the endoscope to flush the observation area during observation.

[0003] At the same time, in order to be able to treat the observed area in time, the endoscope is also provided with an instrument channel. Medical instruments dedicated to the endoscope can reach the observed area through the instrument channel, and then cooperate with the endoscope to treat the observed area.

[0004] Regarding the above-mentioned related technologies, it is believed that the following defects exist: flushing the observation area through an endoscope requires connecting a water pipe to the endoscope to supply water. However, during the operation of the endoscope, it is often necessary to rotate the endoscope so that the medical device can reach the appropriate position. The water pipe connected to the endoscope will interfere with the rotation of the endoscope and affect the use of the endoscope. Summary of the Invention

[0005] In order to solve the problem that the water pipe connected to the traditional endoscope may interfere with the use of the endoscope, the present application provides a rotary endoscope.

[0006] The present application provides a rotary endoscope that adopts the following technical solution:

[0007] A rotary endoscope comprising:

[0008] Mirror tube, used to be inserted into the human body and serve as an observation channel as well as a flushing and suction channel;

[0009] The mirror body is connected to the mirror tube and is used to observe the image transmitted by the mirror tube;

[0010] A connecting seat is provided on the mirror body and is provided with a liquid inlet and a liquid outlet, the liquid inlet is used to provide a flushing liquid when flushing the mirror tube, and the liquid outlet is used to extract the liquid through the mirror tube;

[0011] The mounting seat is rotatably mounted on the connecting seat and is provided with a liquid inlet valve and a liquid discharge valve. The liquid inlet valve is communicated with the liquid inlet, and the liquid discharge valve is communicated with the liquid outlet.

[0012] Through the above technical solution, since the liquid inlet valve and the liquid discharge valve used to connect the water pipe are installed on the mounting seat, and the mounting seat and the connecting seat are rotatably connected, the mounting seat can remain stationary when the mirror tube is rotated, so that the water pipe connected to the mounting seat will not interfere with the rotation of the mirror tube, which is beneficial to the operation of the mirror tube during surgery.

[0013] Optionally, the mounting seat is tubular and coaxially rotatably mounted on the connecting seat. The connecting seat is coaxially spaced along the axial direction of the mounting tube with three isolation rings. A sealing area is formed between the first isolation ring, the second isolation ring and the mounting seat, and the area is defined as a first area. A sealing area is formed between the second isolation ring, the third isolation ring and the mounting seat, and the area is defined as a second area. The liquid inlet is located in the first area, and the liquid outlet is located in the second area.

[0014] Optionally, the mounting seat is slidingly sleeved on the connecting seat, and the connecting seat is provided with a fixing member for fixing the axial position between the mounting seat and the connecting seat.

[0015] Optionally, the isolation ring includes a mounting ring and a sealing ring provided on the connecting seat. The mounting ring is provided with an annular groove on the side facing away from the connecting seat. The sealing ring is embedded in the annular groove. When the mounting seat is installed on the connecting seat, the sealing ring fits tightly against the inner wall of the mounting seat.

[0016] Optionally, one end of the connecting seat provided with an isolation ring is in a truncated cone shape, and outer edges of both end surfaces of the mounting ring are chamfered.

[0017] Optionally, the end of the connecting seat away from the isolation ring is cylindrical, and one end of the mounting seat is fitted with a sliding sleeve on the cylindrical end of the connecting seat.

[0018] Optionally, the fixing member includes a fixing nut, which is threadedly installed on one end of the connecting seat, and when the fixing nut is tightened, one end of the fixing nut is pressed against the mounting ring of the third isolation ring, and one end of the mounting seat is pressed against the end face of the fixing nut, and the end face of one end of the mounting seat pressed against the fixing nut is an arc-shaped protrusion.

[0019] Optionally, an anti-loosening ring is coaxially rotatably mounted on one end of the fixing nut away from the mounting seat.

[0020] Optionally, the valve switch handles of the liquid inlet valve and the upper liquid discharge valve are both located on the same side of the side wall of the mounting seat.

[0021] Optionally, a plurality of through holes are formed on a side wall of the end portion of the mirror tube insertion end, and the through holes are connected to a channel of the mirror tube for extracting liquid.

[0022] To sum up, in this application, since the liquid inlet valve and the liquid discharge valve for connecting the water pipe are installed on the mounting seat, and the mounting seat and the connecting seat are rotatably connected, the mounting seat can remain stationary when the mirror tube is rotated, so that the water pipe connected to the mounting seat will not interfere with the rotation of the mirror tube, which is beneficial to the operation of the mirror tube during surgery. After use, the fixing nut can be unscrewed and the mounting seat can be removed for cleaning, which is more convenient to clean. At the same time, since the connecting seat is in a frustum shape during disassembly, the friction process between the mounting seat and the sealing ring is shorter when the mounting seat is pulled off, and the wear on the sealing ring due to disassembly is less. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of this application.

[0024] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application from an upward viewing angle.

[0026] Figure 4 yes Figure 3 Enlarged schematic diagram of part B in the middle.

[0027] Figure 5 It is a cross-sectional view of the connecting seat and the mounting seat of the present application.

[0028] Figure 6 yes Figure 5 Enlarged schematic diagram of part C in the middle.

[0029] Figure 7 This is a cross-sectional view of another connecting seat and mounting seat of the present application.

[0030] Figure 8 yes Figure 7 Enlarged schematic diagram of part D in the middle.

[0031] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be exaggerated relative to other elements to help improve understanding of the embodiments of the present invention.

[0032] Figure numerals: 1. Mirror tube; 11. Flushing channel; 12. Liquid aspiration channel; 13. Through hole; 2. Mirror body; 3. Connecting seat; 31. Liquid inlet; 32. Liquid outlet; 33. Instrument channel; 4. Mounting seat; 41. Liquid inlet valve; 42. Liquid outlet valve; 43. Connecting groove; 5. Isolation ring; 51. Mounting ring; 511. Chamfer; 52. Sealing ring; 53. Annular groove; 54. First zone; 55. Second zone; 6. Fixing part; 61. Fixing nut; 62. Anti-loosening ring; 7. Optical system; 8. Recess. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-8 This application is described in further detail.

[0034] The present application discloses a rotary endoscope, referring to Figure 1 、 Figure 2 and Figure 3 , including a mirror tube 1 and a mirror body 2, the mirror body 2 is fixedly connected to the mirror tube 1, the mirror tube 1 is used to be inserted into the human body, the mirror body 2 and the mirror tube 1 are provided with an optical system 7, the mirror body 2 is provided with an eyepiece, the optical system 7 reflects the light emitted by the external light source along the mirror tube 1 to the end of the mirror tube 1 and then reflects the impact of the light after irradiation along the mirror tube 1 to the eyepiece of the mirror body 2. The operator can observe the internal situation of the human body at the end of the mirror tube 1 through the eyepiece.

[0035] Reference Figure 1 、 Figure 2 and Figure 3 A flushing channel 11 and a liquid aspiration channel 12 are provided inside the mirror tube 1. Both the flushing channel 11 and the liquid aspiration channel 12 extend to the end face of the mirror tube 1. During observation, physiological saline can be released to the observed part through the flushing channel 11 for flushing. The physiological saline is used to flush the observed part on the one hand, and on the other hand, it is also used to flush the lens of the optical system 7 located at the end face of the mirror tube 1 to avoid obstruction of the observation field due to lens contamination.

[0036] After flushing, the negative pressure aspirator immediately sucks out the physiological saline through the aspiration channel 12 to keep the observation field clear.

[0037] Reference Figure 6 The mirror tube 1 is fixedly mounted with a connecting base 3. The end of the connecting base 3 facing away from the mirror body 2 is cylindrical and then truncated conically. Three isolation rings 5 ​​are evenly spaced along the length of the mirror tube 1 at the truncated conical end of the connecting base 3. The isolation ring 5 includes a mounting ring 51 integrally mounted on the sidewall of the truncated conical end of the connecting base 3 and a sealing ring 52. The mounting ring 51 has a coaxial annular groove 53 formed on the side facing away from the connecting base 3. The sealing ring 52 is fitted into the annular groove 53. The outer edges of both end surfaces of the mounting ring 51 are chamfered 511.

[0038] Reference Figure 1 and Figure 5 The mounting ring 51 close to the mirror body 2 is defined as the first mounting ring 51. A liquid inlet 31 is provided on the side wall of the connecting seat 3 between the first mounting ring 51 and the second mounting ring 51. The liquid inlet 31 is connected to the flushing channel 11 inside the mirror tube 1. A liquid discharge port 32 is provided on the side wall of the connecting seat 3 between the second mounting ring 51 and the third mounting ring 51. The liquid discharge port 32 is connected to the liquid suction channel 12 inside the mirror tube 1.

[0039] The connecting seat 3 is also provided with an instrument channel 33, through which the adapted surgical instrument can be extended along the mirror tube into the observation site for operation, thereby avoiding secondary injury.

[0040] A tubular mounting seat 4 is coaxially sleeved on the connecting seat 3. One end of the mounting seat 4 is fitted with a sliding sleeve on the cylindrical end of the connecting seat 3. At this time, the sealing ring 52 fits tightly against the inner wall of the mounting seat 4. Through the sealing fit between the sealing ring 52 and the inner wall of the mounting seat 4, a closed space is formed between two adjacent mounting rings 51 and the sealing ring 52.

[0041] Reference Figure 1 and Figure 5 The enclosed space formed by the first and second mounting rings 51 is defined as a first zone 54, and the enclosed space formed by the second and third mounting rings 51 is defined as a second zone 55. A liquid inlet valve 41 and a liquid outlet valve 42 are fixedly mounted on the mounting base 4. The liquid inlet valve 41 communicates with the first zone 54, and the liquid outlet valve 42 communicates with the second zone 55.

[0042] The inner walls of the mounting seat 4 at the first area 54 and the second area 55 are both provided with an annular recess 8. The annular recess 8 at the first area 54 is used to buffer the pressure of the water flow sprayed from the liquid inlet valve 41, so that when the mounting seat 4 and the connecting seat 3 rotate relative to each other, the pressure of the water flow entering the mirror tube 1 is relatively stable, and thus the pressure of the water flow sprayed from the mirror tube 1 is relatively stable, and it is not easy for the relative rotation between the mounting seat 4 and the connecting seat 3 to cause the sprayed water pressure to be unstable, thereby causing irritation to the detected object.

[0043] The annular recess 8 at the second area 55 is used to accommodate debris in the extracted liquid, so that blockage is unlikely to occur in the second area 55 when the liquid is extracted.

[0044] The connecting base 3 is provided with a fixing member 6, which includes a fixing nut 61 threadedly mounted on one end of the connecting base 3. After tightening the fixing nut 61, one end of the fixing nut 61 abuts against the end face of the third mounting ring 51. At this time, the end face of the mounting base 4 abuts against the end face of the fixing nut 61, and the axial position of the mounting base 4 is fixed by the fixing nut 61. The fixing nut 61 is prevented from loosening by the reverse elastic force of the sealing ring 52. The end face of the mounting base 4 abutting against the end face of the fixing nut 61 is also arc-shaped and convex, so that there is line contact between the mounting base 4 and the fixing nut 61, reducing friction between the mounting base 4 and the fixing nut 61, thereby preventing the fixing nut 61 from loosening during relative rotation between the mounting base 4 and the fixing nut 61.

[0045] Reference Figure 1 and Figure 5A locking ring 62 is coaxially mounted on the side of the fixing nut 61 facing away from the mounting ring 51. When in use, the locking ring 62 serves as a support as a whole, so that when the fixing nut 61 rotates with the mirror tube 1, the locking ring 62 serving as a support is in a stationary state, thereby converting the sliding friction between the fixing nut 61 and the hand into rotational friction between the locking ring 62, thereby making it difficult for the fixing nut 61 to be loosened due to excessive friction between the hand during the rotation of the mirror tube 1.

[0046] During flushing, the inlet valve 41 is connected to the flushing pump, and physiological saline enters the first region 54 through the inlet valve 41, then enters the flushing channel 11 in the endoscope tube 1 through the liquid inlet 31, and finally flushes the inspected area along the flushing channel 11. Simultaneously, the drain valve 42 is connected to the negative pressure aspirator, which draws liquid from the inspected area through the drain valve 42.

[0047] And because the liquid inlet valve 41 is connected to the first zone 54 with a higher water level, and the liquid discharge valve 42 is connected to the second zone 55 with a lower water level, when flushing and pumping are performed simultaneously, the wastewater in the second zone 55 with a low water level is not easy to enter the first zone 54 with a high water level and contaminate the clean saline in the first zone 54.

[0048] After flushing is completed, the fixing nut 61 can be unscrewed and the mounting base 4 can be removed for cleaning, which is convenient for cleaning. At the same time, due to the chamfer 511 set on the mounting ring 51, the mounting base 4 is not easily scratched by the mounting ring 51 during the disassembly and installation process, resulting in the sealing between the mounting base 4 and the sealing ring 52 being destroyed.

[0049] Reference Figure 1 and Figure 5 Since a section of the mounting ring 51 of the connecting seat 3 is in the shape of a truncated cone, the friction between the mounting seat 4 and the sealing ring 52 during installation or disassembly is shorter, thereby reducing the wear of the sealing ring 52 and improving the service life of the sealing ring 52.

[0050] During use, the frictional damping between the sealing ring 52 and the mounting base 4, as well as the frictional damping between the sealing ring 52 and the fixing nut 61, prevents the tube 1 and the body 2 from rotating rapidly due to gravity, which could damage the object being observed. Furthermore, because one end of the mounting base 4 is rotatably mounted on the cylindrical section of the connecting base 3, the mounting base 4 causes relatively uniform wear on the sealing ring 52 during rotation, preventing the sealing ring 52 from failing due to localized excessive wear, thereby extending the service life of the sealing ring 52.

[0051] Reference Figure 3Several through-holes 13 are formed in the sidewall of the insertion end of the tube 1. These through-holes 13 communicate with the liquid aspiration channel 12 within the tube 1. During aspiration, liquid enters the tube 1 not only through the end of the tube 1 but also through the through-holes 13. This allows liquid to be discharged through the through-holes 13 even if the end of the tube 1 becomes clogged. Furthermore, the valve switch handles of the inlet valve 41 and the drain valve 42 are located on the same side of the sidewall of the mounting base 4. The rotation axes of the valve switch handles of the inlet valve 41 and the drain valve 42 are perpendicular to the length of the tube 1, facilitating opening and closing of the valves during operation.

[0052] The first mounting ring 51 is located at the end with the largest diameter of the conical section of the connecting seat 3, the second mounting ring 51 is located in the middle of the conical section of the connecting seat 3, and the third mounting ring 51 is located at the end with the smallest diameter of the conical section of the connecting seat 3. When the rubber sealing ring 52 is worn too much and needs to be replaced, since the part of the connecting seat 3 where the sealing ring 52 is installed is conical, the diameters of the three sealing rings 52 decrease successively, and the diameter difference between the three sealing rings 52 is large, so that when the sealing ring 52 is reinstalled, the sealing ring 52 does not need to be stretched before reaching the mounting ring 51 where it needs to be installed, and can be pushed to the mounting ring 51. It is only necessary to stretch the sealing ring 52 when pushing it into the annular groove 53. The sealing ring 52 is not easy to twist during installation, so that the sealing performance of the sealing ring 52 is not easily reduced due to twisting.

[0053] Reference Figure 7 and Figure 8 The first mounting ring 51 of the present application can also be provided at the side wall of the cylindrical section of the connecting seat 3, and the inner wall of the mounting seat 4 is provided with an annular connecting groove 43, and the connecting groove 43 is embedded and matched with the sealing ring 52 of the first mounting ring 51. When the mounting seat 4 is fitted on the connecting seat 3, the two sides of the sealing ring 52 of the first mounting ring 51 are respectively fitted and embedded in the connecting groove 43 and the annular groove 53, and the friction between the sealing ring 52 on the first mounting ring 51 and the mounting seat 4 provides the mounting seat 4 with a tightening force on the sealing ring 52 of the second mounting ring 51 and the sealing ring 52 of the third mounting ring 51. At this time, the end face of the mounting seat 4 facing the fixing nut 61 is flat. When the fixing nut 61 is tightened, there is a gap between the fixing nut 61 and the mounting seat 4 for rotating the mounting seat 4, and when the mounting seat 4 slides to press against the end face of the fixing nut 61, the mounting seat 4 and the three sealing rings 52 are still sealed.

[0054] Through the above-mentioned cooperation, it is less likely that the fixing nut 61 will loosen during rotation of the mounting seat 4, causing leakage of liquid in the first area 54 and the second area 55. In addition, only the sealing ring 52 of the first mounting ring 51 is more worn, and only the sealing ring 52 of the first mounting ring 51 needs to be replaced more frequently, and the overall maintenance is also more convenient.

[0055] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A rotary endoscope, characterized in that: include: A mirror tube (1) is used for being inserted into a human body and serving as an observation channel. A flushing channel (11) and a liquid aspiration channel (12) are provided inside the mirror tube (1), and both the flushing channel (11) and the liquid aspiration channel (12) extend to the end surface of the mirror tube (1) and the flushing and liquid aspiration channel (12); A mirror body (2) is connected to the mirror tube (1) and is used to observe the image transmitted by the mirror tube (1); A connecting seat (3) is provided on the mirror body (2) and is provided with a liquid inlet (31) and a liquid outlet (32), wherein the liquid inlet (31) is used to provide a flushing liquid for flushing the mirror tube (1), and the liquid outlet (32) is used to extract the liquid through the mirror tube (1); The mounting seat (4) is rotatably mounted on the connecting seat (3), and is provided with a liquid inlet valve (41) and a liquid discharge valve (42), wherein the liquid inlet valve (41) is communicated with the liquid inlet (31), and the liquid discharge valve (42) is communicated with the liquid outlet; the mounting seat (4) is coaxially rotatably mounted on the connecting seat (3) in a tubular shape, and the connecting seat (3) is coaxially provided with three isolation rings (5) at intervals along the axial direction of the mounting seat, wherein a sealing area is formed between the first isolation ring (5), the second isolation ring (5) and the mounting seat (4), and the area is defined as a first area (54); and a sealing area is formed between the second isolation ring (5), the third isolation ring (5) and the mounting seat (4), and the area is defined as a second area (54). 5), the liquid inlet (31) is located in the first area (54), and the liquid outlet (32) is located in the second area (55); the mounting seat (4) is slidingly sleeved on the connecting seat (3), and the connecting seat (3) is provided with a fixing member (6) for fixing the axial position between the mounting seat (4) and the connecting seat (3); the connecting seat (3) is provided with an isolating ring (5) at one end thereof in a truncated cone shape, and the isolating ring (5) includes a mounting ring (51) and a sealing ring (52) provided on the connecting seat (3), and the mounting ring (51) is provided with an annular groove (53) on a side facing away from the connecting seat (3), and the sealing ring (52) is fitted in the annular groove (53), and the mounting ring (51) is provided with a sealing ring (52) and a sealing ring (52) ) are provided with chamfers (511) on the outer edges of both end faces. When the mounting seat (4) is mounted on the connecting seat (3), the sealing ring (52) fits tightly against the inner wall of the mounting seat (4); the inner walls of the mounting seat (4) at the first area (54) and the second area (55) are provided with annular recesses (8); the annular recess (8) at the first area (54) is used to buffer the pressure of the water flow ejected from the liquid inlet valve (41), and the annular recess (8) at the second area (55) is used to accommodate debris in the extracted liquid, so that the second area (55) is not easily blocked when the liquid is extracted; the first mounting ring (51) is located at the end with the largest diameter of the frustum section of the connecting seat (3), and the second mounting ring (51) is located at the end with the largest diameter of the frustum section of the connecting seat (3). Located in the middle of the conical section of the connecting seat (3), the third mounting ring (51) is located at the end of the conical section of the connecting seat (3) with the smallest diameter; the fixing member (6) includes a fixing nut (61), the fixing nut (61) is threadedly mounted on one end of the connecting seat (3), and when the fixing nut (61) is tightened, one end of the fixing nut (61) presses against the mounting ring (51) of the third isolation ring (5), one end of the mounting seat (4) presses against the end face of the fixing nut (61), and the end face of the end of the mounting seat (4) pressing against the fixing nut (61) is arc-shaped and convex; the fixing nut (61) is coaxially rotatably mounted with an anti-loosening ring (62) at one end away from the mounting seat (4);The end of the connecting seat (3) away from the isolation ring (5) is cylindrical, and one end of the mounting seat (4) is arranged on the cylindrical end of the connecting seat (3) in cooperation with the sliding sleeve.

2. The rotary endoscope according to claim 1, characterized in that: The valve switch handles of the liquid inlet valve (41) and the upper liquid discharge valve (42) are both located on the same side of the side wall of the mounting seat (4).

3. The rotary endoscope according to claim 1, characterized in that: A plurality of through holes (13) are provided on the side wall of the end portion of the insertion end of the mirror tube (1), and the through holes (13) are connected to a channel of the mirror tube (1) for extracting liquid.

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